Naturally, this time of year we have eggnog to drink. I was looking at the ingredient list on a container and it looked very much like the same ingredients for ice cream, except in liquid form. So I poured some into an ice cream maker, and, voilà, eggnog ice cream.
It now occurs to me that, with all the nutmeg in eggnog, it would make a good base for pumpkin ice cream. But this will require figuring the right amount of pumpkin to add (and whether to compensate with more sugar). Another possibility is adding chocolate syrup to eggnog to make chocolate ice cream.